Ala. Code § 11-16-10

Said commissioners shall give notice of the date established for holding the election by publishing a copy of said order for four consecutive weeks in a newspaper published in the county or, if there be no newspaper published in the county, by posting a copy of said order at the courthouse and at five other public places in the county, such publication to begin or such notices to be posted within 15 days from the time of making said order.